Car-brake.



V. ROTE.

OAR BRAKE.

' APPLIGATIN FILED JAN..26, 1911.

l 1,006,682.14,v Patented. 0Qf,.24,1911. y

Incense. 'y

sTATEs f PATENT OFFICE.

CilazAisnLEs` vIcTon ROTE. 0F LANCASTER-,f PENNSYLVANIA, AssIGNon To MAGGIE P.-

. HOLMAN, or LANCASTER; PENNSYLVANIA. 1`

cnf-BRAKE.-

To clit whom 'it may concern:

it known that I, CHARLES V. ROTE, a citizen of the United States, residing at Lancaster, in the county of Lancaster and State oit P ennsylvania,have invented certain new and lusefull Improvements in Car-Brakes, of which the followingis a specification..V

.Ely present'invention has for itsobject the provision of means whereby'a brake shoe adapted to engage both lthe tread andl lange of a car wheel may be detachably secured to the bra-ke blockor head,'in such a .nner that the braking pressure may vbe applied through ,the entire extent of lthe shoe.

A further object of the invention is to provide a construction by which twisting of the shoe upon the head will be prevented.`

These stated objects, and such other incidental. objects las will hereinafter appear, are' attained in the device illustrated in'the accompanying drawings; andthe invention consists in certain novel features of the same which. will be hereinafter lirst fullyde-. particularly pointed,V

scribed and then more out in the appended claim.

In the annexed drawings, Figure 1 is a front view of the `brake shoe and head, look- 4ing at the concave or braking face of the shoe. Fig. 2 is a side elevation of the saine.A Fig. 3 is a back view. Fig. 4 isa perspective .View of the shoe. 'Fig 5 is a perspective view of the head. Fig.. 6 is a cross section on liner 6-6 of Fig. 2.

In carrying out my present invention, I employ a brake shoe'l'anda brake block 2. The brake shoe is offset laterally along one side, as shown at 3, theolset forming a flange-engaging groove Llon the concave. face or front side of the shoe while to save metal and to reduce the weight voit' the shoe With out ali'ecting its strength, the edge of they shoe may be cut away at its center, as shown at 5. On the convex or rear side of the shoe,

. the offset forms a longitudinal rib 6 while at the en ds of the. shoe transverse ribs 7 extend from this longitudinal rib 6 to the opposite side edgeof the shoe. At intervals on the back orconvex side of the shoe are keepers consisting of pairsA of .lugs 8` cast with the shoe and steelk straps 9 anchored in the lugs in the process of casting the. shoe.

One lug of each pair of lugs is formed on the side of the longitudinal rib 6 while the other lugof each pair of lugs is arranged at the l edge of the shoe,

llugs 12 are cast at the `ends of the same which receivev the vthe Ashoe between the l the opposite side of the shoe, a brake block 110 specmcation vof Letters Patenti l Patented 0015.244; -1-911. Applicationmed-Ianuary 2 6, 1911. l

'serial No. 604,911.

the keepers being thus brought into perfect alinement so that the connectingkey may be easily inserted.

l The brake block 2 has the general outline of a crescent in side view, being cutaway or recessed between its ends and having curved surfaces 10 at its ends to bear against the.

convex rear side of the shoe, the extremities o f the block fitting against thetransverse ribs 7 on the-shoe and thereby preventing relative longitudinal movement of the Ishoe and thev block. The curved surfaces 10 extend close to the outermost keepers on the shoes and the recessed portion 11 of thefblock enables 'the' block to t over all the keepers. Vithin the recessed portion of the block, thereon and t-hese lugs fit between the keepers as shown andas will be understood. f These lugsv are provided with openings 13 near one endfwhich, when the block and shoe are in their proper relative positions, will be in alinement with'the keepers ,on the shoe to form a passage through which a key 14 may be inserted to secure the shoe to the block. The end ywallsof the recess 11 are provided with openings 15 to admit the ey and guide it to the keepers and the apertured lugsv and openings coincide with grooves 16 in .thefouter side of the block ends of the key. The lugs 12 extend nearly across the block so as -to project over the longitudinal rib 6 on the shoe, and one corner of each lug and `one edge of each face 10 is cut away therebyforming alined notches ,17 which permit the saidV lugs and curved -faces `telit against and over said rib. The

shoe and block will thus be prevented from twisting upon each other and the block is caused to" extend over the llange-engaging. portion of the shoe so that the braking presv sure will be distributed evenly throughouty the entire body of the shoe so that an eiiicient brakingengagement of the4 shoe with the wheel will be eiliected and the wear upon the shoewill be vuniform throughout its working face.

I claim as my; invention and desire to secure by Letters Patent:

The combination of a brake shoeprovided 105 jat one side with alongitudinalrib on its convex face and having transverse ribs at its ends. on-sald face, :a series of keepers on i longltudmal rib and 1 having its ends engaging the transverse ribs on the shoe and provided with curved sur- -aces bearing against the shoe, said curved Y surfaces being notched at one side to t over the longitudinal rib von the shoe .and the block beingy recessed between said surfaces, lugs on the block Within said recessed.

portion thereof, said lugs having openings through one e'nd and being notched at Iche 10 opposite end to engage overthe longitudinal rib on the shoe, and 'a key inserted through the openings 1n said lugs and through the s CHARLES vieron ROTE.

Witnesses:

CEAS. E. LONG, C. A. Gnos'r.' 

